| Talbragar River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Australia |
| Subdivision Type2: | State |
| Subdivision Name2: | New South Wales |
| Subdivision Type3: | Region |
| Subdivision Name3: | IBRA |
| Subdivision Type4: | District |
| Subdivision Name4: | Upper Hunter, Orana |
| Subdivision Type5: | Municipalities |
| Subdivision Name5: | Upper Hunter, Warrumbungle, Dubbo |
| Length: | 277km (172miles) |
| Source1: | Liverpool Range, Great Dividing Range |
| Source1 Location: | north of Cassilis |
| Source1 Elevation: | 1130m (3,710feet) |
| Mouth: | confluence with the Macquarie River |
| Mouth Location: | near Dubbo |
| Mouth Elevation: | 258m (846feet) |
| River System: | Macquarie River, Murray–Darling basin |
| Tributaries Right: | Coolaburragundy River |
| Extra: | [1] |
Talbragar River, a perennial stream that is part of the Macquarie catchment within the Murray–Darling basin, is located in the Orana district of New South Wales, Australia.
The river rises on the western side of the Liverpool Range on south slopes of Great Dividing Range, north of Cassilis and flows generally south west, joined by fifteen tributaries, including the Coolaburragundy River, and reaching its confluence with the Macquarie River near Dubbo; descending over its course.
The river flows through the Dunedoo and is noted for its influence on flood, particularly for its capacity for rapid rise and fall, due to the wide catchment, and the effect of its flood water on Dubbo.
The Talbragar River was first encountered by Europeans in the late 1820s when it was called the Putterbatta River. The first bridge over the Talbragar was built in the 1850s, near Dunedoo, by Thomas New.